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Simplifying 28x2 + 16x + -15 = 0 Reorder the terms: -15 + 16x + 28x2 = 0 Solving -15 + 16x + 28x2 = 0 Solving for variable 'x'. Factor a trinomial. (-15 + -14x)(1 + -2x) = 0Subproblem 1
Set the factor '(-15 + -14x)' equal to zero and attempt to solve: Simplifying -15 + -14x = 0 Solving -15 + -14x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -14x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -14x = 0 + 15 -14x = 0 + 15 Combine like terms: 0 + 15 = 15 -14x = 15 Divide each side by '-14'. x = -1.071428571 Simplifying x = -1.071428571Subproblem 2
Set the factor '(1 + -2x)' equal to zero and attempt to solve: Simplifying 1 + -2x = 0 Solving 1 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2x = 0 + -1 -2x = 0 + -1 Combine like terms: 0 + -1 = -1 -2x = -1 Divide each side by '-2'. x = 0.5 Simplifying x = 0.5Solution
x = {-1.071428571, 0.5}
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